aco.jp

Valid Email Server
Domain Lookup › aco.jp

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
aco.jp
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-04-02 11:50:38 UTC · ↺ Refresh

MX Hostnames

  • mx.hetemail.jp

MX Priorities

  • mx.hetemail.jp: 10

A / AAAA Records

  • 157.7.189.67 ↩ users254.vip.heteml.jp

Mail Server IPs

  • 157.7.189.1 ↩ mx.heteml.jp

SOA Record

Raw SOA dns0.heteml.jp hostmaster.aco.jp 1775128577 16384 2048 1048576 2560
Primary NS (mname)
dns0.heteml.jp
Admin Email (rname)
hostmaster@aco.jp
Serial
1775128577
Refresh
16384s
Retry
2048s
Expire
1048576s
Minimum TTL
2560s

Nameservers (NS)

dns0.heteml.jp
dns1.heteml.jp

SPF Record

✓ Soft Fail (~all)
v=spf1 include:_spf.heteml.jp ~all
📊 DNS lookups: 1/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

✗ p=none
v=DMARC1; p=none;
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)

DKIM Selectors

✗ None detected

No DKIM records found for common selectors — your provider may use a custom selector name.

Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses

All TXT Records

1 record
  • SPFv=spf1 include:_spf.heteml.jp ~all
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